If your work doesn't already have a pumping room established, who would you approach about getting a space for pumping? Your supervisor? Human Resources? I work at a smaller company with about 50 employees. I am the first employee in my department to ever have been pregnant (crazy, right?). The only other people to have been pregnant in the past few years were both "higher ups" and I don't know if they pumped , but I'm sure they used their private offices. I am out in the open.

BFP 8/9/2013
EDD for our baby boy 4/14/2014
Eli Thomas born 4/22/2014
Re: question re: pumping at work
BFP #1 May 20, 2013 MC June 27, 2013 BFP #2 August 2, 2013 Baby Boy born 4/25/14 (3 weeks overdue!)
April 14 August Siggy Challenge- "This time last year.."
BFP: 7/5/10 EDD: 3/13/11 Miscarriage 8/1/10 at 8 weeks
BFP: 10/30/10 EDD: 7/7/11 Born 7/11//11 7lb12oz, 20 in.
BFP: 7/30/13 EDD: 4/9/14 Born right on time on his due date! 8lb10oz, 21.5 in.
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I'd talk to your supervisor first and then HR. Good luck!